An NUS student tastes a virtual lemonade simulator, which uses electrodes to mimic the flavour and LED lights to imitate the color of real lemonade, at the National University of Singapore campus in Singapore April 13, 2017. REUTERS/Edgar Su

An NUS student tastes a virtual lemonade simulator, which uses electrodes to mimic the flavour and LED lights to imitate the color of real lemonade, at the National University of Singapore campus in Singapore April 13, 2017. REUTERS/Edgar Su